- Feb 10, 2009
Wire brushing tends to damage the insulator and cause tracking of the spark....not good for expensive plugs..............
What's wrong with a brass wire brush?
Sheesh . . . . IIRC, my iridiums haven't seen daylight in the best part of ten years.
Tri-Spark, PWK flatslides from Jim Schmidt, and Denso iridiums. No problems . . . and I set the gaps wide too.
How wide do you go with your plug gaps?Yes, thanks. Agreed, there is no necessity to widen the gaps, the factory sets them to a common denominator and they function perfectly but I pay extra for them in order to get what they do best - bridge big spark gaps.
I think I can use the word "always" here; all things equal, a long fat spark is always better.
Yes, that wide gap speaks to all three - mixture, ignition and plugs. Electronic ignition ensures the power to bridge a wide gap; sharp pointed plugs enable that wide gap to be even wider, and that longer spark attenuates low speed inadequacies of fuel atomization. In other words, they help transitional mid-range; when the mixture's confused, they help.
I learned a related thing when using accelerator pump carbs on Ducati singles, fine point plugs help there too for, I imagine, the same reason - any momentary richness that the accelerator pump may cause can be cured (or masked ) with a stronger spark. Those bikes needed help coming off corners, pumpers and platinum .
I put spark plugs in my blast cabinet all the time with fine results. Just a quick blast with medium fine glass beads cleans them with no visible erosion of the electrodes.On my R100GS it made a slight difference in low RPM tractability. I have not tried them in my Norton for the above reason.
Would be interested in hearing if anyone here still media blasts clean their sooty plugs with the specialty plug blaster tool.